Portion of a display screen with a transitional graphical user interface



FIG. 1 is a front view of a portion of a display screen with a transitional graphical user interface showing a first image of my new design.

FIG. 2 is a front view of a portion of a display screen with a transitional graphical user interface showing a first embodiment of a second image of my new design.

FIG. 3 is a front view of a portion of a display screen with a transitional graphical user interface showing a second embodiment of a second image of my new design.

FIG. 4 is a front view of a portion of a display screen with a transitional graphical user interface showing a third image of my new design.

FIG. 5 is a front view of a portion of a display screen with a transitional graphical user interface showing a fourth image of my new design.

FIG. 6 is a front view of a portion of a display screen with a transitional graphical user interface showing a fifth image of my new design.

FIG. 7 is a front view of a portion of a display screen with a transitional graphical user interface showing a sixth image of my new design.

FIG. 8 is a front view of a portion of a display screen with a transitional graphical user interface showing a seventh image of my new design.

FIG. 9 is a front view of a portion of a display screen with a transitional graphical user interface showing a eighth image of my new design.

FIG. 10 is a front view of a portion of a display screen with a transitional graphical user interface showing a ninth image of my new design.

FIG. 11 is a front view of a portion of a display screen with a transitional graphical user interface showing a tenth image of my new design.

FIG. 12 is a front view of a portion of a display screen with a transitional graphical user interface showing an eleventh image of my new design.

FIG. 13 is a front view of a portion of a display screen with a transitional graphical user interface showing a twelfth image of my new design.

FIG. 14 is a front view of a portion of a display screen with a transitional graphical user interface showing a thirteenth image of my new design; and,

FIG. 15 is a front view of a portion of a display screen with a transitional graphical user interface showing a fourteenth image of my new design.

The broken line showing of a portion of a display screen, text, and elements of the transitional graphical user interface forms no part of the claimed design.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1, 2, 4-15 and FIGS. 1, 3-15, respectively. The process or period in which one image transitions to another image forms no part of the claimed design. 

CLAIM The ornamental design for a portion of a display screen with a transitional graphical user interface, as shown and described. 